Hugh Neutron

It's clear that Jimmy didn't inherit his genius from his dad, Hugh. Hugh is kind of goofy (ok , really goofy), but he's always in a good mood. When it comes to discipline, he's clueless, and leaves the hardcore parenting stuff to Jimmy's mom, Judy (who he affectionately calls ''Sugar Booger''). Hugh collects wooden ducks as a hobby, but he's almost as fascinated by Jimmy's neato ''toys'' as Jimmy is. Strangely, he was president of the Brain Teaser Club in high school.